package layout

import (
	"testing"

	"git.eeqj.de/sneak/hdmistat/internal/fbdraw"
)

func TestBasicDrawing(t *testing.T) {
	// Create a small grid for testing
	grid := fbdraw.NewCharGrid(40, 10)
	draw := NewDraw(grid)

	// Clear the screen
	draw.Clear()

	// Draw some text
	draw.Color(Color("white")).Text(5, 2, "Hello")
	draw.TextCenter(0, 4, "Centered")

	// Create a sub-grid with border
	subGrid := draw.Grid(1, 1, 38, 8)
	subGrid.Border(Color("gray50"))

	// Basic checks
	if grid.Width != 40 {
		t.Errorf("Expected width 40, got %d", grid.Width)
	}
	if grid.Height != 10 {
		t.Errorf("Expected height 10, got %d", grid.Height)
	}

	// Check that some text was written (not all cells are empty)
	hasContent := false
	for y := 0; y < grid.Height; y++ {
		for x := 0; x < grid.Width; x++ {
			if grid.Cells[y][x].Rune != ' ' {
				hasContent = true
				break
			}
		}
	}

	if !hasContent {
		t.Error("Expected some content in the grid, but all cells are empty")
	}

	// Print the grid for visual inspection
	t.Logf("Rendered grid:\n%s", grid)
}

func TestHelloWorldScenario(t *testing.T) {
	// Simulate the hello world scenario
	grid := fbdraw.NewCharGrid(80, 25)
	draw := NewDraw(grid)

	draw.Clear()

	centerY := grid.Height / 2

	draw.Color(Color("cyan")).Bold()
	draw.TextCenter(0, centerY-2, "Hello World")

	draw.Color(Color("white")).Plain()
	draw.TextCenter(0, centerY, "12:34:56")

	draw.Color(Color("gray60"))
	draw.TextCenter(0, centerY+2, "Uptime: 1:23")

	borderGrid := draw.Grid(2, 2, grid.Width-4, grid.Height-4)
	borderGrid.Border(Color("gray30"))

	// Check that the grid has the expected content
	gridStr := grid.String()
	t.Logf("Hello World grid:\n%s", gridStr)

	// Very basic check - just ensure it's not empty
	if len(gridStr) == 0 {
		t.Error("Grid string is empty")
	}
}